Unknown CDC unit , looks like a drum memory ?

Al Kossow aek at bitsavers.org
Wed May 16 12:04:01 CDT 2018


http://www.oocities.org/athens/forum/8564/books/wmthesis/thesis_01.htm
references the 863 being used on the CDC 3100

On 5/16/18 10:00 AM, Al Kossow via cctalk wrote:
> 
> 
> On 5/16/18 9:13 AM, jos via cctalk wrote:
> 
>> Anyone can identify this ?
>>
> 
> 
> if you look on bitsavers under cdc/catalogs M90310500_Internal_Literature_Catalog_Jul75.pdf
> 
> lists several drum storage units including the models 861, 863 and 865
> 
> the controller looks a little too early to be for the BG504A
> the one you're trying to identify looks to be using 1604/160 series modules
> 
> 39731700A_BG504A-H_Drum_Memory_CE_Manual_Jul72.pdf for the 1700
> 
> 



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